Sled-brake.



1. A. ARMSTRONG L EfoLsEN.

sLEn BRAKE.

APPLICATION FILED MAY 20, 1915.

2 SHEETS-SHEET 2.

@IIIe/omg Patented Dec. 21, 1915.

Josep/7 Armsirong COLUMBIA PLANQGRAPH co., WASHINGTON, D. c.

:rosErH A. ARMSTRONGAND'EMIL o LsEN, or EPHRAM, UTAH. Y

snap-BRAKE.

To all whom t may concern:

Be it known that we, JOSEPH A. ARM- STRONG andfEMIL OLsEN, citizens ofv the United States, residing at Ephraim, in the vcounty of Sanpete and State'of Utah, have invented certain new and useful Improvementsr in Sled-Brakes; and we-do declare the following to be a full, clear, and exact description of the invention, such as will enablev others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements'in brakes fory sleds or sleighs. Y

The object of the invention is to provide a simply constructed and efficient brake of this character which may be so mounted on a sled orsleigh that a manipulation of the y brake in one direction will force pointed pro- 'Fig 2 is a plan view the sled showing this improved brake ;V Fig.

jections into the lsnow or ice surface at the sides of the runners to thereby retard or stop themovement of the sled, and the movement of the brake lever in an opposite direction will operate to elevate said projections from the surface of theice or snow and if said brakeis not held in applied position it will be automatically released by the forward movement of the sled. i

, .Another object is to provide a vbrake vof this character which will reliably operate under all conditions and which may be readily applied to sleds and sleighs already in use;

With these and other objects in view, the invention consists of certain novel features of construction and the combination and arrangement of parts as will be more fully described and claimed.

' In the accompanying drawings Figure 1` represents a side elevation of a sled equipped with .this improved brake and with the brake shown in inoperative position in full lines and in operative position in dotted lines;

' of the rear portion of 3 is anenlarged side elevation taken from the side ofthe sled opposite that from which Fig'. lis taken; Fig. lis a similar view taken from the same side of the sled that Fig. 1 is taken.; Fig. 5 is a transverse vertical section taken on the line 5-5 of Fig. 2, and F 6 Speccation of Letters Patent.

ent application ofthe invention.

VInthe embodiment illustrated, a bob sled S is 'shown with the brake constituting this invention shown applied to the rear bob which is shown provided with the usual bolster o. This bolster is provided with the usual standards sl to receive a sled box or body7 B. bolster brackets 1 and 2 which have longitudinally alinedr `slotted bearings 3 therein to receive and supporta shaft et which extends trans" versely across the sled at the front of the bolster b and isdesigned to move vertically in the slots 3.

' Brake levers 6 and 7 are shown fulcrumed intermediately of their ends on the outer faces of the runners 8 and 9 between the outer faces of said runners and longitudi-` nally extending guide straps or guards 10 which are spaced from the sides of the runners a suiicient distance to permit the brake levers to move freely, therein. VThe lower ends of these levers 6 and 7 are pointed andwhen the levers are disposed in upright position are adapted to project below the lower edges or surface engaging faces of the run. ners so that these pointed ends 11A when the levers are so disposed will be forced'into theV ice or snow at the sides of the sled and thus retard its movement, or if sufiicient force be v exerted thereon will. probably stop the sled entirely. T he upper ends of these levers and 7 are pivotally connected with arms 12 by the projecting ends of the shaft 4, said shaft ends being squaredto freand 13 carried ceive and hold the arms 12and 13 and prevent their turning on said shaft. The armI 13 is extended to form an actuating lever 14 by means of which the brakeelements or levers 6 and 7 are turned into and out of operative position. These brake levers 6 and "i 7 are preferably provided with a plurality,`

of longitudinally spaced aperturesl 15, several of which are located adjacent the central Patented'Dec. 21,1915.

z.application med May 2o, 1915. Y serial No. 29,377. l

b at opposite sides of the sled are two TENT union. y

Attachedtothe front of the or middle portion of the lever to provide for l its adjustable connection with itsfulcrum whichv is. here shown passing through the: guard straps 10, the runners, and preferably through plates 16 secured on the inner faces of the runners so that a strong supporting structureis shown provided for the brakes. Bumpers 17v are shown in the form of-iron straps adjustably mounted on the lower face of the oppositeends of the cross beam y18 on which the bolster b ismounted and which has one end projectingbeyond the front face of said beam into the path of the arms 12 and 13 to limitvthe opening movement off said arms and thereby prevent them from passing beyond a vertical position. Thesel bumpers 17v are preferably slotted to receive their fastening bolts to provide for their ad# justment toward and away 'fr0-m said links to compensate for wear or for varying their adjustment for other purposes. j.

A brake rod 19 is shown connected at one end with the lever Vla'nd at-its other end with a-n operating leverf20y yfulcrumed at the front-of the sled preferably on the iboxV or f body thereof in convenient position for vmanipulation by the driveroroperaton p This lever has a dog 21 which is designed to engage a quadrant 22 for'locking said lever Y 2,0 in adjusted position wherebyv the brake levers are held either in operative or inoperative position as may be desired. The lever la` which constitutes an` extension ofthe arm 1'3'is preferably provided with a plurality of laterally extending-loops 23 which are designed to receive an extension rod or bar 24 to provide for the operation of the brakes atv a remote point when the sled is used for haulingV lumber or other loads, the boxes or body of the sled being removed when so I p used, andvthereby the rod 19 and lever 20 j. shown in Fig. l, when the brake levers 6 andY y ride upwardly in the slots 3 and through the being also removed. Secured to the extension lever 24 at one end is an operating rope or 'cable 25 which isv then passed around'a pulley 26 carried by a chain which passes around the lumber at the front ofthe sled and after passing over said pulley is carried backand passed over a pulley 27 at the upper end of the extension 24, the .free end of said rope being positioned near the front of,V the sled convenient for ready manipulation-.by the operator who may ride on the sled or walk at one side thereof.

`From the above description it will be obvious that when the parts are in theposition 7 ,arein operative positionA with their front ends extending forwardly, and it is desired to apply the brakes, the lever 14, is moved forwardly, thereby causing the shaft 5 to arms 12 vand 13, elevating the levers 6`-and 7 into vertical position, thereby causing the sharpened points or diggers 11 thereof to be projected downwardly 'into surface-engag ing position at the sides vofthe sled. When these brakes have been so' disposed and itis desired to hold them in this position for any length of time, the lever 20 at the front of the sled is locked injengagementfwith` the quadrant and thebrakes will-remain in this position until the lever is released when the continued forward movement of the sled or sleigh will, by the pressure exerted on the pointed ends of the lever, cause said ends to swing rearwardly and their upper ends for- AWardly, thereby releasingthe brake levers posite ends-,beyond the opposite 'sides `ofthe sled, arms secured to the ends Vof said'shaft,

brake levers fulcrumedv intermedia-tely: fof their ends on the sled runnersandgpiv'otally 'connected at their upper ends with the free ends of vsaid arms, said levers being vso ful= a fvertt` crumed that their lower ends will 'projectV below the lower faces of the sled. runners when the arms are in upright position, and

meansfor actuating said rock shaft toppen;

and close said brake levers. i 2. vThe combination with a sled having guards on the outer faces of itsfrunners spaced from said runners, levers adjustably fulcrumed intermediately of their 'endsbee tween said guards and runners, arms pivot?. ally Vconnected with the upper endis'of'fsaid brake levers, a rock shaft fixedly connected with said arms, a* lever for actuatin 'A said rock shaft to 'open rand close said bra 'e le-.v

los

vers, and means positioned to engage said actuating means to limit the Vopening rnovefV ment of said levers. n

3. In a sled the combination of a bolster,

Vbrackets; disposed at the front of said bolster and having vertically 'disposed slots therein, a shaft mounted in said slots, means for- 'rais ing and lowering said shaft in'saidffslots, brake levers fulcrumed intermediatelyv of their ends' on said sled runners, their braky ing ends positionedfto extend beyond the` lower faces of the runners when said levers are in opened position, and arms co"'nnecti:ngA

said levers with said shaft.y f 4. Ina sled the combination of a bolster,

brackets disposed at the front of said bolsterj and having vertically disposed slotstherein?,`

a shaft mounted in said slots', means forl rais'- ing and lowering saidshaft in s 'aid slots, brake levers fulcrumed vintermediatelyl oui their @lids on said sled runners, theirldra'king ends positioned to extend beyond the set our hands in presence of two subscribing lower' faces of the runners when said levers witnesses. are in opened position, arms connecting said JOSEPH A ARMSTRONG levers with said shaft, and bumpers adjust- EMIL OLSN 5 ably mounted on said bolster and disposed in the path of said arms for limiting the Witnesses: opening movement of said brake levers. F. H. RASMUSON, In testimony whereof we have hereunto ERNELL JENSEN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Pstents,

. Washington; D: C. 

